Broadband and Efficient Doherty Power Amplifier by Influencing Output Impedance of Auxiliary Power Amplifier and Optimizing Impedance of Quarter-Wave Transmission Line

被引：0

作者：

Kumar, Amit ^{[1
]}

Rudramuni, Karthik ^{[2
]}

Sharma, Dushyant K. ^{[2
]}

Kumar, Gande Arun ^{[1
]}

Hashmi, Mohammad Farukh ^{[1
]}

机构：

[1] Natl Inst Technol, Dept ECE, Warangal, Telangana, India

[2] Wipro Technol, 5G Res Grp, Bangalore, Karnataka, India

来源：

2022 IEEE MICROWAVES, ANTENNAS, AND PROPAGATION CONFERENCE, MAPCON | 2022年

关键词：

Broadband; Doherty power amplifier (DPA); non-infinite auxiliary impedance; optimized output combiner;

D O I：

10.1109/MAPCON56011.2022.10047110

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a novel Doherty Power Amplifier configuration with broadband and highly efficient characteristics is proposed. It is based on the synthesis of key approaches such as non-infinite output impedance of auxiliary power amplifier and optimizing the impedance of./4 transmission line. A detailed analytical analysis of drain efficiency at peak power level and at 6-dB output power back-off level is performed. The proposed methodology has yielded the peak power efficiency as well as the 6-dB output power back-off efficiency always greater than 70% in the entire frequency range. Thus, a highly efficient Doherty Power Amplifier with a very wide fractional bandwidth of 80% is obtained.

引用

页码：142 / 146

页数：5

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